Define the law of superposition
The law of superposition states that the oldest rocks in a stratigraphic sequence will be at the bottom, and age of each layer decreases as you move upwards (I.e. a layer in a sequence cannot be younger than one above it). This assumes that the sequence is still the right way up, and that none of the layers intruded after the sequence was deposited.
HH
Related Geology A Level answers
All answers ▸Describe and explain the nature of Igneous body A and explain the distribution of olivine and its significance?
How do anticline and syncline folds differ?
Why does the Hjulstrom curve have its shape
What are the major components required for a oil accumulation to form.